EP 2453163 A4 20130814 - ILLUMINATION DEVICE, DISPLAY DEVICE, AND TELEVISION RECEIVER
Title (en)
ILLUMINATION DEVICE, DISPLAY DEVICE, AND TELEVISION RECEIVER
Title (de)
BELEUCHTUNGSVORRICHTUNG, ANZEIGEVORRICHTUNG UND FERNSEHEMPFÄNGER
Title (fr)
DISPOSITIF D'ÉCLAIRAGE, DISPOSITIF D'AFFICHAGE ET RÉCEPTEUR DE TÉLÉVISION
Publication
Application
Priority
- JP 2010054515 W 20100317
- JP 2009159397 A 20090706
Abstract (en)
[origin: EP2453163A1] A backlight unit (49) of a display device (69) including a liquid crystal display panel (59) includes a chassis (41), a diffusion plate (43) which is supported by the chassis, and a point light source for irradiating the diffusion plate with light. The point light source includes an LED (22) mounted on a mounting substrate (21) . A plurality of the LEDs are provided and respectively covered with dif fusion lenses (24). Optical axes (OA) of the diffusion lenses are tilted relative to the diffusion plate, and the diffusion lenses having different tilts of the optical axes exist on the chassis in a mixed manner. The diffusion lenses having the optical axes which tilt in opposite directions are paired, and the pairs are arranged in a matrix.
IPC 8 full level
F21S 2/00 (2006.01); F21V 5/04 (2006.01); G02F 1/13357 (2006.01); H01L 33/58 (2010.01); F21Y 101/02 (2006.01)
CPC (source: EP US)
G02F 1/133603 (2013.01 - EP US); G02F 1/133606 (2013.01 - EP US); G02F 1/133607 (2021.01 - EP US); G02F 1/133609 (2013.01 - EP US); G02F 1/133611 (2013.01 - EP US); H01L 33/58 (2013.01 - EP US)
Citation (search report)
- [XYI] JP 2006228576 A 20060831 - SONY CORP
- [XYI] JP 2009087538 A 20090423 - SHARP KK
- [Y] JP 2009043628 A 20090226 - SHARP KK
- [Y] US 2005265051 A1 20051201 - YAMAMOTO TSUNENORI [JP], et al
- See references of WO 2011004637A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
DOCDB simple family (publication)
EP 2453163 A1 20120516; EP 2453163 A4 20130814; BR 112012000426 A2 20180410; CN 102472439 A 20120523; JP 5192078 B2 20130508; JP WO2011004637 A1 20121220; RU 2012103900 A 20130820; RU 2503881 C2 20140110; US 2012099046 A1 20120426; WO 2011004637 A1 20110113
DOCDB simple family (application)
EP 10796948 A 20100317; BR 112012000426 A 20100317; CN 201080027627 A 20100317; JP 2010054515 W 20100317; JP 2011521844 A 20100317; RU 2012103900 A 20100317; US 201013379092 A 20100317